编程改变相对布局 [英] Changing relative layout programmatically

问题描述

我已经相对布局即的main.xml 这是我设置如下。但现在我已经把厂景对视图2是宽度= 200dp和高度= 100dp ，使视图2将大单和厂景将在它小的。

 公共无效的onCreate（捆绑savedInstanceState）
         {
            super.onCreate（savedInstanceState）;
            的setContentView（R.layout.main）;
         }
 

的main.xml

 ＆LT;的RelativeLayout的xmlns：机器人=htt​​p://schemas.android.com/apk/res/android
    机器人：ID =@ + ID /根
    机器人：layout_width =match_parent
    机器人：layout_height =match_parent＆GT;    ＆LT; RelativeLayout的
    机器人：ID =@ + ID / mainPanel中
    机器人：layout_width =match_parent
    机器人：layout_height =match_parent
    机器人：layout_above =@ ID / panel_bottom
    机器人：layout_gravity =CENTER_HORIZONTAL＆GT;    ＆LT; com.proj.demo.view1
        机器人：ID =@ + ID /表
        机器人：layout_width =match_parent
        机器人：layout_height =match_parent
        机器人：layout_alignWithParentIfMissing =真
        机器人：layout_centerInParent =真
        机器人：layout_toLeftOf =@ + ID / panel_quick_buttons
        /＆GT;    ＆LT; com.proj.demo.view2
        机器人：ID =@ + ID / Sheet2的
        机器人：layout_width =match_parent
        机器人：layout_height =match_parent
        机器人：layout_alignWithParentIfMissing =真
        机器人：layout_centerInParent =真
        机器人：layout_toLeftOf =@ + ID / panel_quick_buttons
      /＆GT;＆LT; / RelativeLayout的＆GT;
＆LT; / RelativeLayout的＆GT;
 

解决方案

那你想达到什么目的？如果你只是想改变宽度和唤起注意比：

  RelativeLayout的RL =（RelativeLayout的）findViewById（R.id.yourId）;
    。rl.getLayoutParams（）高度= 100;
    。rl.getLayoutParams（）宽= 100;
 

I've relative layout i.e. main.xml which I set as follows. But now I've to put view1 on view2 with width=200dp and height =100dp, so that view2 will be large one and view1 will be small one on it.

public void onCreate(Bundle savedInstanceState) 
         {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);
         }

main.xml

  <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/root"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <RelativeLayout
    android:id="@+id/MainPanel"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_above="@id/panel_bottom"
    android:layout_gravity="center_horizontal" >

    <com.proj.demo.view1
        android:id="@+id/sheet"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignWithParentIfMissing="true"
        android:layout_centerInParent="true"
        android:layout_toLeftOf="@+id/panel_quick_buttons"
        />

    <com.proj.demo.view2
        android:id="@+id/sheet2"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignWithParentIfMissing="true"
        android:layout_centerInParent="true"
        android:layout_toLeftOf="@+id/panel_quick_buttons"
      />

</RelativeLayout>
</RelativeLayout>

解决方案

What do you want to achieve? If you just want to change width and heigh than:

    RelativeLayout rl = (RelativeLayout) findViewById(R.id.yourId);
    rl.getLayoutParams().height = 100;
    rl.getLayoutParams().width = 100;

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